58 YC Legal Startups (B2B)

58 YC companies fall under Legal, YC's B2B subcategory, across every batch since 2005. Each row shows the one-liner, batch, HQ and status, and links to a reconstruction of the company's YC application in the real form.

Companies
58
Top locations
San Francisco, New York and Boston
58 reconstructed applications

Read the YC application of all 58 companies

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The first 58 companies, top companies first

1
&AI
&AICollaborative workspace for patent litigators
Summer 2024San Francisco, CAActive
2
Abel
AbelTransforming document review for litigation teams
Winter 2024San Francisco, CAInactive
3
Andco
AndcoEnd-to-end case workups for personal injury firms.
Spring 2026San Francisco, CAActive
4
Atrium
AtriumModern law firm for startups powered by proprietary technology
Winter 2018San Francisco, CAInactive
8
Blueshoe
BlueshoeThe AI platform for legal reasoning
Spring 2025Boston, MAActive
9
Caseflood.ai
Caseflood.aiHow elite law firms do intake
Winter 2025San Francisco, CAActive
10
Casetext
CasetextWe make the world's laws free and understandable.
Summer 2013San Francisco, CAAcquired

That is 10 of 58.

Every company below has its YC application reconstructed in YC Insights. Create a free account to read them all.

Read all 58 applications
11
Cembla
CemblaAI for legal & government
Summer 2023San Francisco, CAActive
13
Cognition IP
Cognition IPFlat-fee patent & trademark counsel with top firm results
Winter 2018San Francisco, CAActive
14
ComplyDo
ComplyDoGlobal Compliance for Enterprises
Fall 2025Berlin, Berlin, GermanyActive
15
Crimson
CrimsonThe AI Associate for Litigation Lawyers
Spring 2025London, England, United KingdomActive
16
Darrow
DarrowBring Justice to Light
Winter 2021Tel Aviv-Yafo, Tel Aviv District, IsraelActive
17
DataSuite
DataSuiteDataset Management for AI Trainers
Winter 2023New York, NYActive
18
Dioptra
DioptraAutomated contract review with AI
Winter 2022New York, NYAcquired
19
Docsum
DocsumAI contract repository
Summer 2023New York, NYActive
20
Draftwise
DraftwiseContract and negotiation AI built for lawyers
Summer 2020New York, NYActive
21
Edge
EdgeThe ultimate IP assistant.
Winter 2023San Francisco, CAActive
22
Erinys
ErinysWe help lawyers start and scale AI-native law firms.
Summer 2026San Francisco, CAActive
23
Fed10
Fed10AI Agents for Government Affairs
Winter 2026San Francisco, CAActive
24
Gale
GaleFast and Data-Driven Immigration Platform
Winter 2025San Francisco, CAActive
26
Hona
HonaPersonal Injury Legal Work - Automated
Winter 2023Orem, UTActive
27
Inlet
InletAI timekeeping for legal professionals.
Summer 2023New York City, NYActive
28
Ironclad
IroncladAI-powered contract management
Summer 2015San Francisco, CAActive
30
Kalinda
KalindaDeep research for class action law firms
Summer 2025San Francisco, CAActive
32
Lawyaw
LawyawAutomating document-based workflows
Winter 2018San Francisco, CAAcquired
33
LegalOS
LegalOSThe AI-Native Immigration Law Firm
Winter 2026San Francisco, CAActive
34
Legora
LegoraThe AI workspace for lawyers
Winter 2024Stockholm, Stockholm County, SwedenActive
35
Lexi
LexiAI Associates for Corporate Law
Fall 2025San Francisco, CAActive
36
Lexter.ai
Lexter.aiLLM for Legal in Brazil
Winter 2022São Paulo, SP, BrazilActive
37
Lightfield
LightfieldAI that works for in-house legal teams
Fall 2026San Francisco, CAActive
38
Mage Legal
Mage LegalAutomatic AI Legal Diligence
Summer 2024San Francisco, CAActive
40
OpenIntake
OpenIntakeThe AI Front Door For Law Firms
Winter 2025New York, NYActive
41
Pactima
PactimaLive video signing for real-time agreements
Summer 2021Ottawa, ON, CanadaAcquired
43
Pearson Labs
Pearson LabsAI agents to automate corporate transactions
Fall 2024San Francisco, CAActive
44
Pincites
PincitesClose deals faster with AI for contract negotiation
Summer 2023Menlo Park, CAAcquired
45
Regbase
RegbaseThe source of truth for global and local regulation
Spring 2026San Francisco, CAActive
46
Regology
RegologyAI Agents for Regulatory Compliance
Summer 2018San Francisco, CAAcquired
47
Rescript
RescriptAI Regulatory Analyst for Enterprises
Summer 2024Washington, DCActive
49
SimpleLegal
SimpleLegalLegal Operations for corporate legal teams.
Summer 2013Los Angeles, CAAcquired
52
Third Chair
Third ChairAI-Native IP Enforcement Agent
Spring 2025San Francisco, CAActive
53
Tire Swing
Tire SwingAI Powered Affordable Housing Eligibility
Winter 2025New York, NYActive
54
Tower
TowerM&A due diligence platform powered by AI
Winter 2024San Francisco, CAActive
56
Version Story
Version StoryGitHub for lawyers
Winter 2021New York, NYActive

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About this list

This list is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise.

Frequently Asked Questions

How many Y Combinator companies are in Legal (B2B)?

This directory lists 58 YC companies in Legal (B2B), out of 6,207 across every batch since 2005. The count updates when the directory is refreshed, and every one of them is on this page with a link to its public profile.

Are the YC applications on these pages real?

No. YC keeps submitted applications private. Every application linked from this list is a reconstruction: the real YC form questions, answered from the company's public data. The Company section is free on each page; the rest opens in YC Insights.

How do I use this list when applying to YC?

Pick five companies on this page whose product is closest to yours, read their reconstructed applications side by side in YC Insights, and note how each answers the same question. Then write your own answers to that standard.

Where does this data come from?

From YC's public company directory, refreshed by batch, with each company's status, industry and location as YC reports them. Round Funded adds the reconstructed application and the founder profiles; nothing private is published.

What is Round Funded?

Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.